唐朝太宗年(👷)间,某夜唐太宗梦见身陷(xiàn )险境(🌰),幸得一白(bái )衣少年所救。徐茂公解(🎹)梦,显(🐉)示(🛤)将(jiāng )有乱事(🏴),须得该少年(nián )相助平乱(⏬)。太宗命张士贵(📼)往找应(🖲)梦少年。原(yuán )(👑)来(lái )此应梦贤(🎡)臣乃大将(🙍)军程咬金之(zhī )救命恩人薛仁(🛺)贵,仁(rén )贵(guì )带(dài )着咬金所(suǒ )赠(zèng )之(zhī )令箭投军,期(qī )间(jiān )更(🐖)误(wù )堕地(💞)洞而(🚢)得奇遇…